Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local…
Priority LOW 36CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.
Why it matters now
EPSS 0.03414 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 29
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:datacenter_edition:*:*:*:*:*:*:* | datacenter_edition | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:datacenter_edition:sp1:*:*:*:*:*:* | datacenter_edition sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:datacenter_edition:sp1_beta_1:*:*:*:*:*:* | datacenter_edition sp1_beta_1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:enterprise_edition:sp1:*:*:*:*:*:* | enterprise_edition sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:enterprise_edition:sp1_beta_1:*:*:*:*:*:* | enterprise_edition sp1_beta_1 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:datacenter_edition:*:*:*:*:*:*:* Versions datacenter_edition Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:datacenter_edition:sp1:*:*:*:*:*:* Versions datacenter_edition sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:datacenter_edition:sp1_beta_1:*:*:*:*:*:* Versions datacenter_edition sp1_beta_1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:enterprise_edition:sp1:*:*:*:*:*:* Versions enterprise_edition sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:enterprise_edition:sp1_beta_1:*:*:*:*:*:* Versions enterprise_edition sp1_beta_1 Vulnerable ·Microsoft
Show 19 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_2003_server:sp1:*:enterprise:*:*:*:*:* | sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:standard:*:*:*:*:*:*:* | standard | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:standard:sp1:*:*:*:*:*:* | standard sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:standard:sp1_beta_1:*:*:*:*:*:* | standard sp1_beta_1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:* | web | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:web:sp1:*:*:*:*:*:* | web sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:web:sp1_beta_1:*:*:*:*:*:* | web sp1_beta_1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:*:december_ctp:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:beta:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:beta1:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_vista:*:beta2:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:*:home:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:*:media_center:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:gold:professional:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp1:home:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp1:media_center:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp2:home:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp2:media_center:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp2:tablet_pc:*:*:*:*:* | all versions | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_2003_server:sp1:*:enterprise:*:*:*:*:* Versions sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:standard:*:*:*:*:*:*:* Versions standard Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:standard:sp1:*:*:*:*:*:* Versions standard sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:standard:sp1_beta_1:*:*:*:*:*:* Versions standard sp1_beta_1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:* Versions web Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:web:sp1:*:*:*:*:*:* Versions web sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:web:sp1_beta_1:*:*:*:*:*:* Versions web sp1_beta_1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:*:december_ctp:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:beta:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:beta1:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_vista:*:beta2:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:*:home:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:*:media_center:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:gold:professional:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp1:home:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp1:media_center:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp2:home:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp2:media_center:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp2:tablet_pc:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-6696
- 2026-10-03 Alias added: GHSA-fmp2-4wcx-jwx4
References
Advisory 1
Other 12
- http://www.kuban.ru/forum_new/forum2/files/19124.html
- http://groups.google.ca/group/microsoft.public.win32.programmer.kernel/browse_thread/thread/c5946bf40f227058/7bd7b5d66a4e5aff
- http://www.security.nnov.ru/Gnews944.html
- http://research.eeye.com/html/alerts/zeroday/20061215.html
- http://www.determina.com/security.research/vulnerabilities/csrss-harderror.html
- http://blogs.technet.com/msrc/archive/2006/12/22/new-report-of-a-windows-vulnerability.aspx
- oval:org.mitre.oval:def:1816
- ADV-2007-1325
- http://www.security.nnov.ru/files/messagebox.c
- 20061221 Microsoft Windows XP/2003/Vista memory corruption 0day
- http://isc.sans.org/diary.php?n&storyid=1965
- ADV-2006-5120
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- TI-2010-00224 The kernel in Microsoft Windows NT 3.1 through Windows 7, including Windows 2000 SP4… KEVCVSS 3.1HIGH 7.8
- TI-2009-01065 The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold… KEVCVSS 3.1HIGH 7.8
- TI-2004-00181 The POSIX component of Microsoft Windows NT and Windows 2000 allows local users to… KEVCVSS 3.1HIGH 7.8
- TI-2002-00354 smss.exe debugging subsystem in Windows NT and Windows 2000 does not properly… KEVCVSS 3.1HIGH 7.8
Sources
- CVE-2006-6696 · CVE Program
- CVE-2006-6696 · NVD
- FIRST EPSS
- GHSA-fmp2-4wcx-jwx4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences